Papillary cystoadenoma lymphomatosum (Warthin-like) of minor salivary glands. (33/66)

Papillary cystadenoma lymphomatosum is a benign salivary gland tumor most frequently located in the parotid gland (Warthin's tumor). Its presentation in other major, or in minor, salivary glands is rare. Clinically, it manifests as a slow growing tumor, fluctuant on palpation due to its cystic morphology. The treatment of choice is complete excision with wide tumor-free margins. We present a 73-year-old female patient with an asymptomatic tumor of 8 years evolution in the right posterior area of the hard palate. We performed surgical excision and a biopsy, which was reported as papillary cystadenoma lymphomatosum. During the post-operative examination carried out after 3 weeks, it was observed that the lesion had recurred. The lesion was re-operated, performing the excision with CO2 laser and including the periosteum to ensure complete resection of the tumor. At 10 months follow-up, there was no recurrence of the lesion. This article includes a review of this condition and discusses its most important clinical and pathologic features and therapeutic approaches.  (+info)

A case of synchronous unilateral parotid tumors of different histologic types. (34/66)

A case of unilateral synchronous tumors of the parotid gland in a 71-year-old man is presented. The clinical, radiographic, and histologic features are discussed along with a review of the literature.  (+info)

Using time-dependent covariate analysis to elucidate the relation of smoking history to Warthin's tumor risk. (35/66)


Parotidectomies in benign parotid tumours: "Sant Pau" surgical extension classification. (36/66)


Sebaceous lymphadenoma of the parotid gland in a 13-year-old girl: a case report. (37/66)


Diagnosing common parotid tumours with magnetic resonance imaging including diffusion-weighted imaging vs fine-needle aspiration cytology: a comparative study. (38/66)


Ultrasonographic and sonoelastographic features of pleomorphic adenomas of the salivary glands. (39/66)

AIMS: The typical ultrasound features of pleomorphic adenomas are considered to be the well-defined contour, the regular, sometimes lobulated shape, homogeneous structure and poor vascularization. The goal of our study was to verify the validity of these features and to identify a typical sonoelastographic pattern for pleomorphic adenomas. PATIENTS AND METHODS: Between April 2007 and February 2010, 70 salivary gland masses were examined prospectively (58 in the parotid gland, 12 in the submandibular gland). The following features were targeted: size, limits, contour, structure, echogenicity, vascularization, elasticity/stiffness. RESULTS: Of the 70 tumors, 32 (45.7%) were pleomorphic adenomas, 12 (17.1%) Warthin tumors, 9 (12.8%) other benign tumors, 13 (18.5%) primary malignant tumors, 3 metastases from carcinoma, and 1 non-Hodgkin lymphoma. Among pleomorphic adenomas, 15 (46.9%) were inhomogeneous, 7 (21.9%) contained necrotic areas and 14 (43.7%) were well-vascularized. The lobulated contour was identified in 14 pleomorphic adenomas (43.7%), no other benign tumor presented this type of contour, but it was identified in 2 malignant tumors (15.3%). On sonoelastography, most pleomorphic adenomas were heterogeneous. The elastic component represented more than 50% of the tumor tissue in 22 cases (68.7%). This aspect was also identified for 6 malignant tumors (46.1%). CONCLUSIONS: Our results demonstrate that features such as heterogeneous structure, rich vascularization and intra-tumoral necrosis may be identified in a significant number of pleomorphic adenomas. The most specific element in our group was the presence of a lobulated contour, which was not seen in any other benign tumor, but may rarely appear in certain malignant tumors. The elastographic aspect was heterogeneous for most tumors, but the elastic composition identified in most pleomorphic adenomas was also present in a significant proportion of malignant tumors. Therefore, a typical sonoelastographic pattern for pleomorphic adenomas could not be identified.  (+info)

Gray scale and Doppler ultrasonography of the benign tumors of parotid gland (pleomorphic adenoma and Warthin's tumor). Pictorial essay. (40/66)

The purpose of this pictorial essay is to illustrate the ultrasonographic aspects of the most common benign tumors of the parotid gland: pleomorphic adenoma and Warthin's tumor. The gray scale and Doppler ultrasonographic findings of the two tumors are reviewed and exemplified.  (+info)